Calculating-machine.



J. BRICKBN. cA'LoULATNG MAGHINB.

APPLICATION FILED PEB.25,1909.

ym1911191l Nov. 2, 1909.

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J. BRIGKEN. y lGALCULATIIIG MACHINE. APPLICATION FILED FEB. 25, 1909.

Patented N0v.2,1909.

11 SHEETS-SHEET 2.

J. Bmomm.y CALOULATING MAGH'INE. APPLICATION` FILED PEB. 25, 1909.

Patented Nov. 2, 1909.

11 SHEETS-.SHEET 3.

J. BRIGKEN.

GALCULATING MAGBIINE.

APPLICATION FILED FEB. 25,1909. 938,550. Patented Nov.2, 1909.

11 SHEETS-SHEET 4.

J. BRICKEN. ,G'ALGULATING MACHINE.

APPLIOATION FILED rnB.25-,19o9.

Patented Nov.2, 1909.

11 sHEnTs-SHBBT 5.

J. BRICKEN. ALUULATING MACHINE.

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J. BRICKBN. GALGULATING MACHINE.

APPLIOAION FILED FEB. 25,1909.

Patented Nov. 2, 1909.

11 SHEETS-SHEET s.

J. BRIGKEN.

CALGULATING MACHINE.

APPLIOATION FILED PEB.25,1909.

938,550. Patented Nov. 2, 1909.

11 SHEETS-SHEET 9.

7 Tf/vs,

aN/71s.

Msi

J BRIGKEN.

GALUULATING MACHINE.

APPLIoATIoN FILED rEB.25,1eon.

938,550. Patented Nov. 2, 1909.

11 SHEETS-SHEET 10.

7 TEA/5.

J. BRIGKEN.. CALCULATING MACHINE.

nPmouIon FILED rnB.25,19o9.

938,550. A Patented Nov. 2, v1909.

11 SHEETS-SHEET 1l.

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UNITED STATES PATENT OFFICE.

JOHN' BBICKEN,

OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENTS, OF ONE-THIRD '10 HARRY MARKS, OF CHICAGO, ILLINOIS, AND ONE-THIRD T0 BEUBEN MARKS, OF DES MOINES, IOWA.

cALcULA'HNG-MACHINE.

Specification of Letters '.Patent.

Patented Nov. 2, 1909.

Application med-February 25, 1909. Serial No. 480,062.

To all whom 'it may concern:

Be it known that I, JOHN BRICKEN, a subject of the Emperor of Russia, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Calculating- Machines, of which the followingfis a specification.

My invention relates to calculating machines and the general object of theV invention is to provide a machine of this character composed of parts which are few in num# ber, simply constructed and reliable in operation.

Another object is to provide a machine having only twenty keys or less, capable of addition, subtraction, multiplication and division.

Another'object of my invention is to provide certain advantageous devices which contribute to the genera-l operation of the machine. These will specifically appear in the following detailed description and claims.

l will first describe the machine more particularly with reference to its ability to mul tiply, after whichl its functions for the other processes will readily become apparent.

It is true of course that two gures are sufficient to express the product of any two digits. Where the product of two digits requires two figures to express it the product. contains a figure in the units place and a figure in the tensy place. In harmony with this law of arithmetic I provide in myl machine two kinds of figure keys, to wit, a set of units keys and a set of tens keys and a key must be operated both in the tens and in the units set for every figure in the multiplicaiid. The keys are motuited in a shiftable key board capable of occupying any one of nine positions, depending upon the digit used as a multiplier.

I accomplish my objects by the mechanism illustrated' in the` accompanying drawings, in which:

Figure 1 is a plan view of the machine. Fig. 2 is a side elevation of the machine with the casing removed. Fig. 3 is a plan view taken on the line 3-3 Fig. 2. Fig. 3a is a detail of the snap catch for holding the key board in the position to which it may be set. Fig. 4 isa sectional elevation taken on yt-he line 4-4 Fig. 2 showing the controlling cylinder and computing wheels thereon.

Fig. 5 is a detail in perspective showing the resetting mechanism for the denomination carriage. Fig. 6 is a side view of the denomination carriage and adjacent parts. Fig. 7 is a front view of the same looking toward the right in Fig. 6. Fi 8 is a perspectiveA view of the tracker ar. Fig. 9 is aperspective view of a carrying wheel. Fig. 10 is a perspective View of a carrying dog. Fig. 1l is a perspective view of a stop dog, employed in` the computing wheels. Fig. l2 is a perspective view of the control# ling cylinder upon which the computing wheels rotate. Figs. 13 and 14 are perspective views of the denomination carriage which actuates the computing wheels. Fig. l5 shows the mathematical table illustrating the principle upon which my machine operates. Fig. 16 is a perspective view of the key-board. Fig: 17 is a perspective view of the yoke bar lwhich carries the denomination carriage. Fig. 18 is a detail view chiefly in longitudinal section through the controlling cylinder showing a convenient form of mountings therefor. Fig. 19 is a diagram indicating the method or principle upon which the differential members are formed. Figs. 20 to 37 inclusive are side views of the individual differential bars.

Similar characters refer to similar parts throughout the several views.

Proceeding now to a detailed description of the form and particular construction 0f machine selected to illustrate theprinciple of my invention, the stationary main frame 1 serves to support and inclose theoperating parts. A key-board 2, best shown 1n Figs. 2 and 16, is adapted to shift forward and backward vor longitudinally in the main frame, having for this purpose flanges 3, 3 which engage the edges of a plate 4 secured to the side walls of said mam frame. The key-board is heldin any position by means of spring dogs 5 secured to the stationary frame and having teeth adapted to slip into the notches 6 on said key-board. Preferably the teeth and notches are beveled so that when the keyboard is pushed with moderate force by the operator it will force the dogs outward and move to the desired position, whereupon the dogs will again take hold.

The position o the key-board, longitudinally in the frame or casing, depends upon the multiplying factor, for example, in mul- Sestao tiplying a number by seven the key-board must occupy a position corresponding to 7 and in multiplying by tour the key-board must be moved to a position corresponding to Ll To indicate the proper position 1 provide a factor indicator which in the present form of machine consists of a series ot' indicating figures 2a marked on the carriage 2, in position to be visible through the sight aperture 1a in the frame or casing, see Fig. 1.

The key stems 9 and 10 belonging respectively to the tens keys 7 and units keys 8 pass through apertures in the top and bottom of the key-board and are thus supported so as to be movable in a vertical direction. rlhe keys are held in raised position by means of springs 1i, as shown in Fig. 2. rThe key stems pas.: through slots 12 in the top otl the main frame, said slots being arranged longitudinally to permit the movement of the keys and key-board. Beneath the keys are the diderential bars 13 which are rigidly secured to the rock shaft 14 and have individual forms, as illustrated in Figs. 20 to 36 inclusive. lllhe form of each bar is determined trom the table shown in Fig. .15.

The rock shaft 14 has rigidly secured thereto two toothed segments or racks 15 and is influenced by a spring 16 or other.

mechanism to remain in raised posit-ion. The teeth on said segments are adapted to engage the pinions 17 which are rigidly secured to the yoke bar 18. rlhe arrangement is such that when a key is depressed, the segments will be depressed and will cause the yoke bar to rotate different amounts, depending upon the key struck. When the key is released the spring 16 will cause the yoke bar to be returned to normal position shown in Fig. 2.

The yoke bar (shown separately in Fig. 17) supportsadenomination carriage (shown separately in Figs. 13 and la) which serve to transmit rotary motion from the yoke bar to the computing wheels 20, mounted upon the controlling cylinder 21. Saidr cylinder is intended to be rotated only tor resetting the computing wheels to zero, or to correct the units wheel to show the proper result in subtraction` or division, and the preferred manner of mounting it is shown in detail in Fig. 18. A handle 22 is mounted on a crank arm 23 which has at its inner end a cylindrical portion 24 journaled in the frame work 1. Inside of said cylindrical portion 24; is a cylindrical portion 25 whereon the yoke bar 18 is loosely mounted so as to be independently rotatable. lnside ot the portion 25 is a portion 26 which is threaded or otherwise ri idl secured to the ends of said controllin cy in er. A late 27 is secured to each end et the contro ling cylinder for holding the computin wheels thereon. The crank 23 ot the resetting handle 2,2 is :dexible to a certain extent to permit the button 28 thereon to spring into the pockets 29 and 30 provided tor it in the side of the framework (see Figs. 2, 3 and 18). As a result of this construction when the button is in one of said pockets the crank 23 and cylinder 21 will be prevented from rotating, but said cylinder may be rotated by withdrawing the button from its pocketand then turning said crank. The computing wheels 20, one ot which is shown in perspective in Fig. 9, are independently rotatable on said cylinder 21, and in the present instance constitute figure wheels also, being provided on their peripheries with ligures running from 0 to 9. Said wheels are each provided with a carrying dog 31 which 1s radially movable and is provided with a lateral extension 32, as clearly shown in Figs. 9 and 10. Said wheels are each provided vith ten ratchet teeth 33 adapted to be engaged by the extension 32 of the carrying'dog on the computing wheel of next lower order. rThe construction is such that when a carrying dog is in projected position, farthest from the center of the computing wheel, thea extension thereon lwill clear the teeth 33 of the computing wheel of higher order, but when the dog is in retracted position, nearest the center of the computing wheel, said extension 32 will engage the teeth on said higher computing wheel. These carrying dogs are urged to retracted position by means ot' a wire spring 311 lying within an annular groove 2()a in the body of the computing wheel as shown in Fig. 9. rlhis spring passes through an aperture 35 in the center of the dog and presses it radially inward toward the center of the wheel.

V9The position of the carrying dogs is controlled by the exterior surface of the controlling cylinder 21, said cylinder being provided with a longitudinal recess 37 into which said dogs may descend when they have rotated to a position in register therewith. At all other points on the surface ot said cylinder the dogs will be held in projected po sition. 0n one side said recess is beveled as at 38 and on the other side is flanked by a radial wall 39 as best vshown in Fig. 12. Furthermore, the inner end of the dog is cut ott square as best shown in Fig. 10. its a result, when moved toward the beveled side 38 the dog will beprojected and its extension 32 will thus clear the teeth 33 on the adjacent computing wheel. By rotating the controlling cylinder in the irection indicated by the arrow in Fig. 12, the dog will tlrstbe caused to drop into slot 37, after which the continued rotation of said cylinder by the handle 22 will cause the wall 39 to engage it to reset the computing wheel to zero.

ln order to prevent the computing wheels trom rotatin accidentally and to hold them accuratey in alinement, one or more spring stop dogs l0 are mounted in the computing wheels4 so as to be ralll esatto nal grooves 41 in the -controlling cylinder. There are nine of these grooves 41 located one tenth of a circumference apart and these, together with the groove 37 are so placed that they will arrestthe computing wheels with their figures at the proper reading line. The sto dogs 40 havey apertures 42 (see Fig. 11) a apted to receive the wire spring 33 in a similar manner to the dogs 30.

The grooves 41 are V shaped or beveled in such manner as to vreceive the inner ends of the stop dogs 40 but prevent the entrance of the carrying dogs-31. carrying dogs will drop at only one point on the cylinder, to wit. the carrying point, whereas the stop dogs will tend to arrest the computing wheels at 'each of the digital points. The recess 37 -w-ill have no eiiect upon the stop dogs, for the latter will be traveling 'in a direction indicated byv the arrow in Fig. 12. As a result of the above described construction the computing wheels may be rotated independently and the carrying dogs will clear the carrying teeth thereof except at the carrying point where the dog springs inward and becomes operative upon the computing wheel of next higher order.

The computing wheels are adapted to be rotated by the pawl 45 pivotally supported from the arms 4G extending from the frame 47 of the denomination carriage as best shown in Figs. 2, 6. 7 and 14. In the form here selected for illustration the denomination carriage consists of a U shaped frame adapted to travel along the yoke bar 18 pastthe computing wheels 20. The pawl 45 is normally pressed toward the computingl wheels by a spring 48 so that said pawl will engage the carrying teeth 33 when the yoke bar'` is rotated in the forward direction but will slip over them when the yoke bar is returned to normal position.

In multiplying. the travel of the denomination carriage from columns of lower to columns of higher order is automatic, being caused by the tracker bar 50 shown separately in Fig. 8. Said tracker bar is rigidly secured to the sides of the main frame preferably by means of the end frames 5()a (see Figs. 6, 7 and 8) and has oblique slots 51 which are arranged parallel to each other As a result, the

i. and adapted to receive the roller 52 carried at the end of the tracker arm 53. Said arm is pivoted to the denomination carriage at the point 54 so as to swing laterally, and is urged to the left (Figs. 7 and 13) by meansof the spring 5F, which is limited in such movement by the arm striking against one of the parts of the denomination carriage. It will be seen that when the yoke bar is depressed tlie roller' 52 will enter the slot beneath it and Will be caused to move toward the right (Fig. 7). This will cause the compression of spring 48 because the carriage is held by a dog 58 engaging thel ratchet teeth 59' of the yoke bar 18 (see Figs. 5. 7 and 17). Said dog is pivotally secured to the carriage and is spring pressed to hold its lower end in engagement with said yoke bar. After the roller 52 has passed out from the lower end of the slot which it has entered,. the spring 48 immediately swings said roller 52 to the left (Fig. 7) so that at the end of tlie return stroke the roller will enter the next slot to vthe left and pull the denomination carriage one step toward the left where the pawl 45- `will be in position to operate upon the wheel of next higher order. The carriage will be held in this next higher position by the dog 58 which will then be in engagement with another ratchet tooth on the yoke bar 18. This traveling action of the denomination carriage due to the interaction of the tracker bar and tracker arm takes place only when one of the units keys is operated. No such traveling action is required when one of the tens keys is operated for the reason that, as previously mentioned. two figures are always suiiicient to express the product of any two digits. I will now describe the present construction by which traveling movement of the 'denomination carriage is prevented when the yoke bar is moved bythe tens keys.

Lying adjacent to tlie underside of the tracker bar is a stop bar 61, mounted so as to slide horizontally (see Figs. 2, 6 and 7) to cover and uncover the lower ends of the slotsI 51 of the tracker bar. The purpose is to prevent the roller 52 from entering ,the tracker bar from beneath on the return movement following operation by the tens keys. This locking bar is spring pressed to occupy a forward position. covering the lower ends of the slots 51. Said bar is forced to retracted position by means of the cams (i3 on the lower end of the controlling arms 64 as best shown in Figs. 2 and (3. Said armsl are pivoted on the stationary rod 65 and are urged to raisedposition by means of the spring 66 shown in Fig. 2. The arrangement is such that when said controlling arm ($4 is .down the stop bar 61 will be in rel tracted, a iionactive position, and when said controlling arms are up said stop bar will be in projected acting position. Said arms (S4 i are adapted to be held dowi-L by means oi the locking bar 68 which crosses ,them and is pivotally mounted upon the. stationary rod 69. The parts are so arranged that when bar (i8 is in one position it will hold the arm 64 down in locked position and when said locking bar is rotated to a second position il will release said controlling arms `and permit the stop bar 61 to move to active position. Said locking bar 68 is adapted to be rotated from active to nonactive .position by means of a, pin 70 secured to thestem of each of the lens keys es shown in Fig. 2. Said locking ber adapted to be rotated from nonafotve to motive position by :i pin 7l mounted on the stein ot ezieh ot the units keys 8. rifhus the depression ot' any one o the units keys will cause the stop bei: 6l to be moved to u position where it will not interfere with the cross trevel ol" the denomination carriage Iout' the operation ot' any one of the tens keys will cause seid stop han' to be moved to :t point where it will interfere and thus prevent such travel. ly thus constructing` the .mech ine so that the denomination carriage or computing-Wheel actuator travels onlyv once in multiplying two digits together the actuator dog #l5 will lie in position to :1 :tuale the proper efnnputingy wheel in multiplying by the next digit.

previously explained the production of 2o any two digits may he expressed by a nuinbei' ing t-v-Jo igures. rlhe product ot some t 1its muy he expressed by e single for exemple. n single figure is suflient te represent the product ot any digit multiplied by l) or l. @onse uently there for the O units key is no need et e tens ley llene-e While there nre or the l unit." ltey.

ten units kgs in my machine, eight tens keys nre suiieiei'it. :5C ln Il went design. the rolle 52 noi'- ion carriage te in n. ooniintzition has heen fr ser T5 is supported :trl me parallel to and if preterul t ieu'hwe the mein ratchet portion o bestV shown n:

Fig. y mounted upon .4 To shown in n, preterred upon seni ears TT it right angles thereto which permits the rethe top of the casing parallel with said yoke her and guide bar to permit the travel ot the resetting,I mechanism. Connecting 'with the lett end of said slot 84tis another slot 85 70 setter to be thrown back clear o the denomination carriage. A spring 86 interposed between the slidingcollar 87 and the head S8 on the handle 82 tends to hold said handle and resetter in non active position.

ln the particular torni of machine here shown, the i'gures on the computing wheels are viewed through an aperture 90 in the plete 91 hinged to the main freine :it 'the point 92 and resting; at its other edge upon n spring` 93 as shown in Fig. :2. Said plate is provided with a. retarding device consisting of n plate of rubber, telt or other suitable material which, when the plete is depressed, Will retard the carrying wheels during the notion oit resetting the letter to zero.

The resetting ot the computing accomplished in the following' Henner: ter computation is complete and the eornputine` Wheels occupy various positions they may be reset by first releasing the resetting handle Q3 and rotating it and 'the controlling cylinder 2l. one complete rot trollingv Cylinder is complete the ull ethil it Zero l :it the rendinh Operation: Let it he supposed 1 nuinoer of..

desired to multiply the The lier board will he sh'. operutoi' to such position that the i nier-nl #l will appear through the sight l. ture ll in the top of 'the Cnsing. 'll lor will then depress the i the tens keyv 3. then the un e computing when is eonmle'e the i nimeer nnen l calcular.;

resets gli? ii on 1 t e zfoinple esatto be lettered from A to l inclusive commencing at the top. rl`l1econtents of the table itself is clearly shown in Fig. 15 and it is sutlicient to say that the product of any two digits may be obtained by reading the number appearing at thel intersection of the rows containing the digits to be multiplied; for example, the product of 3 by 3 is obtained by reading at the intersection of line C and column c. Again the product of 7 by 8 may be obtained by reading the number appearing in line G and column L. In the, table the large type indicates the units of-the product and the small type the tens thereof.

We may now analyze the calculating above given which will appear as follows:

'l he keys are so constructed that when the key board is moved to a point corresponding to the multiplier Ll (which comes in line D of the table) the computing wheel farthest to the right willshow 2 as soon as the 3 units key has been depressed. This corresponds to the units ligure shown in column c (the third column of the table). The 3 tens key is so formed that its depression will cause the second computing wheel from the right to show l. This is in compliance with the tens figure appearing at the same intersection of the table. The fact that the key last depressed actuates the second computing wheel instead of the lowest computing wheel is due to the travel of the denomination carriage which has occurredbetween the action of the two keys. rlhe operator must now depress the 8 units key, and said key is so constructed that it will rotate the second computing wheel from the right two more spaces to show 3 He then depresses the 8 tens key whereupon the third figure wheel from the right end shows 3 This is incompliance with the figure appearing at the intersection of line D and column L. The computingwheels will now show the complete product 332.

As it is necessary Ain multiplication (after the key board has been shifted to proper position)l to press primarily a units key and secondarily the corresponding tens key (except on the occasions when the digit in the multiplicand happens to be 0 or"l) the keys may be said to occur in two sets, a primary set and a secondary set. Referring to the above example, it will be seen that 12 in the line below the multiplier l is a true product, being the product of 3 multiplied by 4 but, consideringthe example as a whole, said product is only a partial product and not the grand or total product which is 332. lIt will be ,seen that a partial product is obtained every time a units key and its companion tens key are struck.

l have now described the construction and operation of the machinel with special reference to multiplication. In an analogous manner it will perform simple addition by moving the key-board to the point corresponding to the index or indicator numeral l.

In order that the machine may be employed for subtraction l have marked co digits upon the figure keys in consonance with the well known theory of complements, the co digits having a value one less than the actual complement. ln my machine the operator does'not have to make the usual correction of unity in the resulting number, this being taken care of' by rotating the handle to pocket 30 (see Fig. 2).

My machine may be also employed to di- -Vide upon the theory that division is the inverse of multi lication. ln order to properly perform ivision the controlling cylinder is rotated one space forward to pocket 30 as in'subtraction. The operator then proceeds as in multiplication. l

The term factor digits may convenient-ly be employed to designate any' two digits intended to be multiplied together:

Having thus described my invention, what l claim as new, and desire to secure by Letters Patent, is:

l. ln a multiplying machine, a totalizer, differential bars for operating the same, said bars having diiferent points of actuation, and ligure keys, one for each of said bars, said figure keys being shiftable to nine different positions relatively to said bars to actuate them at different points depending upon the multiplier to be used.

2. In a multiplying machine, a totaliaer, diferential bars for operating the same, said bars having a plurality of points of actuation for producing different effects upon the totalizer, according to the multiplier to be used, and ligure keys, one for each of said bars, said ligure keys being shiftable t0 act upon said bars at the different points of actuation thereof.

3. multiplying machine comprising a totalizer. and differential mechanism for operating the same, said differential mechanism including a stationary axle, did'erential memtiers pivoted thereon and each having a plurality of points of actuation for producing different amounts of movement in the totalizer, keys for operating said differential members and a key board wherein said keysare mounted, said `key board being shiftable relatively to said diderential members for causing said keys to Contact them at the different points ofactuation thereof.

4. rcalculating macl'iine adapted to multiply and comprising totaliaing mechanism i@ ceases and differential mechanism for actuating the same, said di-Herential mechanism including a single set of units keys running from 0 to 9 and a single set of tens keys running from 2 to 9, and diiferential members operated by said keys, there being a differential member foreach and every one of said keys except the O key, said keys and differential members being relatively shiftable to cause the keys to act upon different portions of the dili'erential members depending upon the multiplying factor to be Iemployed.

5. A calculating machine adapted to multi ly and comprising totalizing mechanism, differential mechanism for actuating the same, said differential mechanism having two sets of keys, one set for obtaining the units gure in a partial product and the other set for obtaining the tens figure in said partial product, and means whereby the relation of parts of the differential mechanism may be altered with respect to each other in accordance with the multiplying factor desired.

6. A calculating machine adapted to multiply and comprising totalizing mechanism, differential mechanism for actuating the same, said differential mechanism havin r two sets of keys, one set for obtaining the units ligure in a partial product and the other set for obtaining the tens figure in said partial product, the first set consisting of ten keys and the second set of less than ten keys, and means whereby the relation of parts of the differential mechanismn may be altered with respect to each other in accordance with the multiplying factor desired.

7. A calculating machine adapted to mul-` tiply and comprising totalizing mechanism, differential mechanism for actuating the same, said differential mechanism havin(y two sets of keys, one set for obtaining the units figure in a partial product. and the other set for obtaining the tens ligure in said partial product, the irst consisting of ten keys runnin from 0 to 9 and the second set consisting of eight keys running from 2 to 9, and means whereby the relation of parts of the differential mechanism may be altered with respect to each other in accordance with the multiplying factor desired.

8. In a calculating machine a carrying mechanism, and actuating mechanism therefor, said actuating mechanism including differential members, and keys shiftabie relatively thereto to any one of nine different positions for actuating them at different points depending upon the factor to be used as a multiplier. i

9. ln a calculating machine, a carrying mechanism and actuating means therefor, said actuating means including two sets of differentialy members, one set for the units figure and the other set for the tens ligure in a partial product, a rock bar common toI all of said diderential members, connections from said rock bar to the carrying mechan ism and key mechanism for operating sain dierential members. i

10. In a calculating machine, a carrying mechanism and actuating means therefor, said actuating means including two sets of dierential members, one set for the units figure and the other set for the tens gure in a partial product, a rock bar common to all of said differential members, connections from said rock bar to the carrying mechanism and key mechanism for operating said differential members, said key mechanism and differential members being relatively movable to alter the multiplying factor.

1l. in a calculating machine, carrying mechanism including carrying wheels and actuating means therefor, said actuating means comprising a bar parallel to and rotatable about the axis of said carrying wheels, means for rotating said bar, and means traveling on said bar for transmitting the rotary movement of said bar to said carrying wheels.

12in a calculating machine, carrying mechanism including carrying wheels and actuating means therefor, said actuating means comprising .a yoke bar parallel to and rotatable about the axis of said carrying wheels, a denomination carriage for transmitting rotary movement from said bar to said wheels, and means for rotating said bar and causing the travel of said carriage thereon.

13. ln a calculating machine, carrying wheels, an actuator therefor adapted to move in the plane of rotation of said wheels and to travel in a direction transverse thereto, means for moving said actuator in the plane of rotation of said wheels, and a stationary member having inclined surfaces operative upon said actuator to cause the same to travel.

14. In 'a calculating machine, carrying wheels, an actuator therefor adapted to move in the plane of rotation of said wheels and to travel in a direction transverse thereto, means for moving said actuator in the plane of rotation of said wheels, and a tracker bar for causing said actuator to travel transversely to the plane of rotation of Athe carrying wheels.

l5. ln a calculating machine, carrying mechanism and actuating means therefor, said carrying mechanism comprising carrying wheels, a supporting member whereon said carrying wheels are independently rotatable, and means controlled by the conguration of said supporting member for transmitting movement from one carrying wheel to the next.

16. ln a calculating machine, carrying mechanismand actuating means therefor, said carrying mechanism comprising carrytra ing Wheels, va controlling cylinder Whereon said carrying mechanism comprising carrying Wheelsrotatable about a common axis, carrying teeth on said Wheels, and members radially movable upon said carrying Wheels for engaging and disengaging the carrying Ateeth on the carrying wheel of next higher order.A

18.1n a calculating machine, carrying mechanism and actuating means therefor, said'carrying mechanism comprising carry- =ing Wheels, a supporting member Whereon said Wheelsjare independently rotatable, and ayieldalole stop dog on each carrying Wheel adapted to coperate with said supporting member to yieldingly hold the' carrying Wheels in 4proper alinement.

19. ln al calculating machine, carrying mechanism and actuating means therefor,

fsaid carryingmechanism comprising carrying Wheels, a supporting member Whereon said Wheels are independently rotatable, said sup- :porting member having notches running :lengthwise thereof, parallel to the axis of the carrying Wheels, therebeing a notch for each figure on a carrying Wheel, and a stop dog yieldingly mounted upon each carrying Wheel and adapted to enter said notches for preventing accidental rotation of the wheel Whereon it is mounted.

20. In a calculating machine, carrying mechanism and actuating means therefor, said carrying mechanism comprising carrying Wheels, a rotatable supporting'member Whereon said carrying Wheels are 'independ- Aently rotatable, a carrying dog on each lcar- -rying Wheel controlled by the configuration lof -said supporting member and means on sai-d supporting member for engaging Ithe carrying dogs to reset the carrying Wheels `to zero.

2l. in a calculating machine, carrying mechanism and actuating means therefor, saidv carrying mechanism comprising carrying Wheels, a. rotatable supporting member Whereon said -carrying Wheels are independently rotatable, a carrying dog on each carrying Wheel controlled by the configuration of' said supporting member, means on said supporting member for engaging the carrying dogs to reset the carrying Wheels to zero, and a hand operable friction device for pre venting accidentalrotation of the carrying Wheels during the resetting o eration.

22. In a calculating mac ine, carrying mechanism and actuating means therefor,

said carrying mechanism comprising carry` ing Wheels, a supporting member Whereon said carrying Wheels' are independently rotatable, means controlled by the configuration of said supporting member for trans- -mitting movement from one carrying Wheel to the next, and figures running m a series `from 0 to 9 on the peripheral surface of said carrying Wheels.

Q3. In 4a lcalculating machine, the combination of differential mechanism, a denomination carriage operated thereby, carrying Wheels operated by said carriage, a bar for supporting said carriage, a carrying cylinder for supporting said carriage, a controlling cylinder for supporting said carrying Wheels and carrying dogs controlled by said cylinder, said bar, cylinder and Wheels all being rotatable about a common axis.

24. In a calculating machine, diiierential mechanism, carrying mechanism including 'carrying Wheels, a bar parallel to and rotatable about the axis of said carrying Wheels and operated by said differential mechanism, a denomination carriage traveling upon said bar to rotate said carrying Wheels, means for causing said carriage to travel in one direction along said bar, and hand releasable means for preventing said carriage from traveling in the opposite direction along said bar.

ln a calculating machine, differential mechanism,,carrying mechanism including arrying Wheels, a bar parallel to and rotatable about the axis of said carrying Wheels and operated by said diiferential mechanism, a denomination carriage traveling upon said bar to rotate said carrying Wheels, means for causing said carriage to travel in one direction along said bar, and resetting mechanism for causing said carriage to travel in the opposite direction along said bar.

26. In a calculating machine, computing wheels, independently rotatable about a common axis, and actuating means therefor, said actuating means including a denomination carriage adapted'to travel in a direction parallel to said axis and to rotate in a plane perpendicular thereto for operating said carrying wheels, and a set of tracks operative upon said carriage to cause travel thereof when the same is rotated.

27. In a calculating machine, computing wheels. independently rotatable about a common axis, and actuating means therefor, said actuating means including a denomination carriage adapted to tra-vel in a direction parallel to said axis and to rotate in a plane perpendicular thereto for operating said carrying wheels, a set of stationary tracks andmeans on said carriage adapted to cooperate With said tracks for causing the travel of said carriage.

Q8. ln a. calculating machine, computing wheels, actuating mechanism therefor in` cluding keys and a key actuated carriage having a rotary movement for rotating the computing Wheel and a cross travel perpendicular thereto, a tracker member adapted to be engaged by said carriage to cause said lOO cross travel, and means controlled by the keys tor controlling the coaction of said tracker member and cai riage.'

2S). ln a calculating machine, computing wheels, actuating' mechanism therefor inclndint,r keys and a key actuated carriage having a rotary movement for rotating the computing wheel and a cross travel perpendicular thereto, a tracker member adapted to he engaged by said carriage to cause said cross travel, and a stop bar controlled by said keys tor rendering said tracker member inellective.

30. In a` multiplying` machine, computing wheels, actuating mechanism therefor, including txvo sets of keys and a key actuated carriage having a rotary movement for rotating the computing wheels and a cross travel perpendicular thereto, a tracker member adapted to be engaged by said carriage to cause said cross travel, and means conJ trolled by one of said sets of keys tor rendering said tracker member ineffective.

31,. A, calculating machine adapted to multiply and comprising totalizing mechanism and diti'erential mechanism for actuating the same, said dilt'erential mechanism having a units set of keys and a tens set of keys, each tens key being a companion to the corresponding units key, a given tens key being adapted to set up the digit having the higher ordinal value in the product of tWo factor digits, and the companion units key being adapted to set up the digit having the lower ordinal value in the said product, and means whereby the relation of parts of the didierential mechanism may be altered with reference to each other in correspondence With one ot said factor digits, in consequence whereof the said units keys and tens keys are sutlicient for setting up the product resulting from the multiplication of any digit by any digit.

32. A multipl ing machine comprising a totalizer and di 'erential mechanism for actuating the same, said differential mechanism including a primary and a. secondary differential member for each of the digits 2, 3, i, 5,16, l', 8 and 9, and only a primary differential .member foreach of the digits O, and l, a ligure key t'or each diderential member; and means for moving the keys relatively to their differential members, said dilerential members being adapted to produce ditterent amounts of movement ot' the totalizer depending' upon the point at which said diierential members are actuated by the keys.

33. In combination, a totalizer, and a secondary set of ential members one for a primary tigure keys, didiereach of said keys,

@sasso said differential members having a plurality ot points of actuation for producing diiilerent amounts of motion in the totalizer, means for shifting said keys relatively to the differential members to actuate them at" any one of their points oit' actuation, and means for transmitting the movement oi the difterential members to the totalizer.

34. In coinbination, a totalizer, a primary and a secondary set ot' ligure keys, difterential members one for each o said keys, said differential members having a plurality ot' points of actuation for producing difterent amounts of motion in the totalizer, a key board wherein said. keys are mounted, said key board' being movable to move the keys simultaneously and relatively to the dierential member tor causing the keys to actuate the differential members at any one of the ditlerent points of actuation thereon, a shiittable denomination carriage i'ior transmitting movement Lt'rom the dilierential members to the totalizer, and means operative by the primary keys for causing the travel of the denomination carriage.

35. ln combination, a totalizer including wheels having figures thereon, a traveling denomination carriage adapted to operate said totalizer in the diti'erent denominations thereof, differential members adapted to move said denomination carriage to rotate the totalizer wheels Yvarious amounts, a primary and a secondary set oi gure keys, each key being operative upon one of said ditlcn ential members to produce rotation oir' said wheels, and means operable only by the primary keys t'or causing the travel of said carriage.

3C. ln combination, a totalizer including Wheels having ligures thereon, a traveling denomination carriage adapted to"operate said totalizer in the different denominations thereof, differential members adapted to move said denomination carriage to rotate the totalizer Wheels various amounts, a primary set of the ligure keys, a secondary set ot' eight ligure keys, said keys being adapted to operate said differential members, and there being a differential member for each ot' said keys, and means operated by the primary keys and non operable by the secondary keys t'or causing the travel of said carringe.

In witness whereof, l have hereunto subscribed my name in the presence of tvvo Witnesses.

BWIGHT B. CHEEVER, C. J. CHRISTOFFEL. 

